<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色管理</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 列表卡片 -->
    <el-card>
      <el-row>
        <el-col>
          <el-button
            type="primary"
            @click="addDialogVisible = true"
          >添加角色</el-button>
        </el-col>
      </el-row>
      <el-table
        :data="rolesList"
        border
        stripe
      >
        <el-table-column type="expand">
          <template v-slot:default="scope">
            <el-row
              :class="['bdbottom','vcenter', i1 === 0 ? 'bdtop':'']"
              v-for="(item1,i1) in scope.row.children"
              :key="item1.id"
            >
              <!-- 一级权限 -->
              <el-col :span='5'>
                <el-tag
                  closable
                  @close="removeRightById(scope.row,item1.id)"
                >{{item1.authName}}</el-tag>
                <i class="el-icon-caret-right"></i>
              </el-col>
              <!-- 二级权限 -->
              <el-col :span='19'>
                <el-row
                  :class="['vcenter',i2 === 0 ? '':'bdtop']"
                  v-for="(item2,i2) in item1.children"
                  :key="item2.id"
                >
                  <el-col :span='6'>
                    <el-tag
                      type="success"
                      closable
                      @close="removeRightById(scope.row,item2.id)"
                    >{{item2.authName}}</el-tag>
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span='18'>
                    <el-tag
                      v-for="(item3) in item2.children"
                      :key="item3.id"
                      type="warning"
                      closable
                      @close="removeRightById(scope.row,item3.id)"
                    >
                      {{item3.authName}}
                    </el-tag>
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-table-column>
        <el-table-column
          type="index"
          label="#"
        ></el-table-column>
        <el-table-column
          prop="roleName"
          label="角色名称"
        ></el-table-column>
        <el-table-column
          prop="roleDesc"
          label="角色描述"
        ></el-table-column>
        <el-table-column
          prop="roleName"
          label="操作"
        >
          <!-- eslint-disable-next-line vue/no-unused-vars -->
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="primary"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
            >编辑</el-button>
            <el-button
              size="mini"
              type="success"
              icon="el-icon-delete"
              @click="deleteRole(scope.row.id)"
            >删除</el-button>
            <el-button
              size="mini"
              type="warning"
              icon="el-icon-setting"
              @click="showSetRightDialog(scope.row)"
            >分配权限</el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <!-- 角色添加对话框 -->
    <el-dialog
      title="添加角色"
      :visible.sync="addDialogVisible"
      width="60%"
      @close="addDialogClosed"
    >
      <span>在下面表格中填写添加信息</span>
      <!-- 表单填写 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="100px"
      >
        <el-form-item
          label="角色名"
          prop="roleName "
        >
          <el-input v-model="addForm.roleName "></el-input>
        </el-form-item>
        <el-form-item
          label="角色描述"
          prop="roleDesc "
        >
          <el-input v-model="addForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="addRoles"
        >确 定</el-button>
      </span>
    </el-dialog>
    <!-- 编辑角色对话框 -->
    <el-dialog
      title="编辑角色"
      :visible.sync="editDialogVisible"
      width="60%"
      @close="editDialogClosed"
    >
      <span>在下面表格中填写添加信息</span>
      <!-- 表单填写 -->
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="100px"
      >
        <el-form-item
          label="角色名"
          prop="roleName "
        >
          <el-input v-model="editForm.roleName "></el-input>
        </el-form-item>
        <el-form-item
          label="角色描述"
          prop="roleDesc "
        >
          <el-input v-model="editForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="editRoles"
        >确 定</el-button>
      </span>
    </el-dialog>
    <!-- 权限分配对话框 -->
    <el-dialog
      title="权限分配"
      :visible.sync="setRightDialogVisible"
      width="60%"
    >
      <span>权限列表</span>
      <el-tree
        :data="rightsList"
        show-checkbox
        node-key="id"
        default-expand-all
        :default-checked-keys="defaultChecked"
        :props="rightsProps"
        ref="treeRefs"
      >
      </el-tree>
      <span
        slot="footer"
        class="dialog-footer"
      >
        <el-button @click="setRightDialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="allotRights()"
        >确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    return {
      rolesList: [],
      rightsList: [],
      defaultChecked: [],
      // 当前即将分配角色id
      roleId: '',
      rightsProps: {
        children: 'children',
        label: 'authName'
      },
      addForm: {
        roleName: '',
        roleDesc: ''
      },
      editForm: {},
      addFormRules: {
        roleName: [
          { required: true, message: '请输入角色名', trigger: 'blur' }
        ],
        roleDesc: [
          { required: true, message: '请输入角色描述', trigger: 'blur' }
        ]
      },
      editFormRules: {
        roleName: [
          { required: true, message: '请输入角色名', trigger: 'blur' }
        ]
      },
      addDialogVisible: false,
      editDialogVisible: false,
      setRightDialogVisible: false
    }
  },
  created () {
    this.getRolesList()
  },
  methods: {
    async getRolesList () {
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        this.$message.error('获取角色列表失败！')
      }
      this.rolesList = res.data
      // console.log(this.rolesList)
    },
    addRoles () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('roles', this.addForm)
        // console.log(res)
        if (res.meta.status !== 201) {
          this.$message.error('添加角色失败！')
          this.addDialogVisible = false
          return
        }
        this.$message.success('添加角色成功！')
        this.addDialogVisible = false
        this.getRolesList()
      })
    },
    // 添加对话框重置
    // 编辑对话框关闭重置
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    editDialogClosed () { this.$refs.editFormRef.resetFields() },
    // 编辑角色对话框
    async showEditDialog (id) {
      // console.log(id)
      const { data: res } = await this.$http.get('roles/' + id)
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('查询角色信息失败！')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 修改角色信息，并提交
    editRoles () {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) {
          // eslint-disable-next-line no-useless-return
          return
        }
        // console.log(this.editForm.roleId)
        const { data: res } = await this.$http.put('roles/' + this.editForm.roleId, {
          roleName: this.editForm.roleName,
          roleDesc: this.editForm.roleDesc
        })
        // console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('更新角色信息失败！')
        }
        // 关闭对话框
        this.editDialogVisible = false
        this.getRolesList()
        this.$message.success('更新成功！')
      })
    },
    // 删除角色
    async deleteRole (id) {
      // console.log(id)
      const res = await this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // console.log(res)
      if (res !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res1 } = await this.$http.delete('roles/' + id)
      if (res1.meta.status !== 200) {
        return this.$message.error('删除角色失败！')
      }
      this.$message.success('删除角色成功！')
      this.getRolesList()
    },
    // 权限列表框
    async showSetRightDialog (role) {
      this.defaultChecked = []
      this.roleId = role.id
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) {
        return this.$message.error('获取权限列表失败')
      }
      this.rightsList = res.data
      this.getRightsId(role, this.defaultChecked)
      this.setRightDialogVisible = true
    },
    // 删除权限
    async removeRightById (role, rightid) {
      const res = await this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (res !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // console.log('确认了删除')
      const { data: res1 } = await this.$http.delete('roles/' + role.id + '/rights/' + rightid)
      // console.log(res1)
      if (res1.meta.status !== 200) {
        return this.$message.error('删除权限失败！')
      }
      this.$message.success('删除权限成功！')
      // this.getRolesList()
      role.children = res1.data
    },
    // 提交权限
    async allotRights () {
      const keys = []
      keys.push(this.$refs.treeRefs.getCheckedKeys(), this.$refs.treeRefs.getHalfCheckedKeys())
      const keyStr = keys.join(',')
      const { data: res } = await this.$http.post(`roles/${this.roleId}/rights`, { rids: keyStr })
      if (res.meta.status !== 200) {
        return this.$message.error('权限分配失败！')
      }
      this.$message.success('权限分配成功！')
      this.getRolesList()
      this.setRightDialogVisible = false
    },
    getRightsId (role, arr) {
      if (!role.children) {
        return arr.push(role.id)
      }
      role.children.forEach((item) => {
        this.getRightsId(item, arr)
      })
    }
  }
}
</script>

<style lang="less" scoped>
.el-tag {
  margin: 7px;
}
.bdtop {
  border-top: 1px solid #eeeeee;
}
.bdbottom {
  border-bottom: 1px solid #eeeeee;
}
.vcenter {
  display: flex;
  align-items: center;
}
</style>
